Foldable cab/pivot unit for a tower crane
AssigneePotain
InventorMichel Lissandre
Life of this patent
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Abstract
The cab/pivot unit comprises an upper mast element associated with a pivot, an access platform which extends horizontally at one side of the mast element, and a driver's cab mounted pivotably about a vertical axis located at the side of the mast element and linked to this element. The cab is orientable manually (arrows F1, F2) through approximately 90° between an operating position, in which it is located in the extension of the access platform, in front of the mast element, and a transport position, in which this cab is folded above the platform, against the mast element. The invention is used for tower cranes with a “suspended” cab.
Claims12
A foldable cab/pivot unit for a tower crane, comprising, in combination:
- an upper mast element associated with a pivot, the mast element having a vertically oriented operating position defining an upright axis of the pivot;
- a cab access platform extending horizontally at one side of the mast element when the mast element is at the vertical oriented operating position;
- and
- a crane driver's cab mounted pivotably about a vertical axis located at the side of the mast element when the mast element is at the vertically oriented operating position and linked to the mast element, the cab being orientable about the vertical axis and through approximately 90° between:
- an operating position, in which the cab is located in an extension of the access platform, in front of the mast element, and
- a transport position, in which the cab is folded above the access platform, substantially in line horizontally with the mast element.
A tower crane including a foldable cab/pivot unit, the foldable cab/pivot unit comprising, in combination:
- an upper mast element associated with a pivot, the mast element having a vertically oriented operating position defining an upright axis of the pivot;
- a cab access platform extending horizontally at one side of the mast element when the mast element is at the vertical oriented operating position;
- and
- a crane driver's cab mounted pivotably about a vertical axis located at the side of the mast element when the mast element is at the vertically oriented operating position and linked to the mast element, the cab being orientable about the vertical axis and through approximately 90° between:
- an operating position, in which the cab is located in an extension of the access platform, in front of the mast element, and
- a transport position, in which the cab is folded above the access platform, substantially in line horizontally with the mast element.
Dependencies are inferred from the claim text.